RU2624527C1 - Compact caterpillar cross-country vehicle - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: compact caterpillar cross-country vehicle contains a power unit with an internal combustion engine, a transmission, a pair of caterpillar propulsor, steering system and platform for standing driver. The platform is rigidly connected with the compact caterpillar cross-country vehicle frame, the steering system contains ropes, connecting the steering wheel with the pressure rollers and providing the removal of the respective roller from position of pressing on the belt, as a result, the torque transmission termination to the caterpillar propulsor. The axis in the hinged joint of steering wheel and pillar, at which the steering wheel is mounted, is fixed on the pillar at the angle to its longitudinal axis.

EFFECT: design simplification and higher safety during the cross-country vehicle operation.

2 cl, 2 dwg

Description

The invention relates to the field of transport engineering. The all-terrain vehicle is designed for off-road movement on soil and snow. It can be used by fishermen and hunters, as well as used to deliver mail or medical care to settlements that are difficult to access due to impassability.

Currently, there are a significant number of models of tracked all-terrain vehicles that differ from each other in size, weight and carrying capacity.

Known small-sized all-season tracked all-terrain vehicle with a sealed body (patent for PM No. 140807, publ. 05.20.2014). The body is located passenger, engine and cargo compartments. Caterpillar movers are located on both sides of the body. The all-terrain vehicle contains a power plant, a suspension, a rotary mechanism and a drive transmission. It is characterized by high traffic due to high ground clearance, lack of front overhang, minimal rear overhang and low center of gravity.

This all-terrain vehicle is positioned as a vehicle occupying an intermediate position between all-terrain vehicles of a particularly small class and large military tracked all-terrain vehicles, which are significant in size and economically inefficient due to their large size and weight.

Along with certain advantages, the all-terrain vehicle also has disadvantages. The relatively large dimensions do not allow it to be transported in the trunk of a car. The rotary device has a complex structure, in particular, contains a complex cam mechanism expensive to manufacture.

Also known is the crawler all-terrain vehicle DTV SHREDDER, developed by the North American company BPG WERKS for active skiing in all weather conditions: off-road, snow, sand, rocks and slopes up to 40 degrees (see http://redlinetuning.ru/equipment_dtv_shredder.shtml).

The all-terrain vehicle is single, refers to vehicles of a particularly small class. An engine, a variator for stepless speed regulation, a brake system, a pair of tracks on an independent suspension bracket and a rotary platform are fixed on a tubular frame. Standing on the platform, the driver sets the direction of the all-terrain vehicle by tilting the platform in the right direction, i.e. The principle of skateboard control is used.

This is the principle of controlling an all-terrain vehicle - like a skateboard - can be attributed to design flaws.

Managing a skateboard is considered quite complicated and even dangerous in some cases. These circumstances are reflected in the instructions for managing a skateboard (see http://www.offsport.ru/skateboarding.shtml).

In particular, the beginner is invited to choose a track for riding a sufficient width, pre-inspect the track for dangerous interference: open hatches, holes and deep ditches. It is also proposed to be prepared for falls from the board, inevitable in the initial period, and accordingly use protective devices for the most vulnerable parts of the body.

It seems that a wedge with a powerful motor, on the oscillating floor of which the driver is trying to maintain balance, can be more dangerous for skating than a skateboard.

The task of the invention is to simplify the design and increase the safety of operation of the all-terrain vehicle.

The technical result consists in increasing the safety and reducing the cost of the all-terrain vehicle.

The technical result is achieved by a compact tracked all-terrain vehicle. The all-terrain vehicle contains a power plant with an internal combustion engine, a transmission, a pair of tracked engines, a steering system and a platform for a standing driver.

The new is that in the hinge of the steering wheel and the steering rack, the axis on which the steering wheel is mounted is fixed to the column at an angle to its longitudinal axis. The kinematic transmission scheme contains belt drives. The transmission contains two belt drives kinematically connected to the engine to drive each of both tracks. Belt drives are equipped with spring-loaded pressure rollers. The steering system contains cables connecting the steering wheel to the pressure rollers and providing the removal of the corresponding roller from the position of pressing the belt and, as a result, the cessation of torque transmission.

The inventive all-terrain vehicle is shown in the drawing and photographs.

For the drive, ICE with 6 hp was used. From the engine, the torque is transmitted to the variator or to the secondary shaft. Further, the power flow by means of belt drives is divided into two branches into coaxially mounted output shafts, at the ends of which the drive sprockets of the track drive are fixed. Around the belt drives transmitting torque to the output shafts, spring-loaded tension rollers are fixed. In working condition, the rollers are in close contact with the belts, ensuring their tension is sufficient for reliable transmission of torque to the tracks.

The rotation is carried out according to the well-known scheme - they brake one of the tracks, continuing to rotate the second.

To control the all-terrain vehicle, a steering system is installed, including a steering rack 1 and a steering wheel 2, which is mounted on an axis fixed to the steering rack at an angle to the longitudinal axis of the rack. The angle should preferably be straight.

The driver stands on a platform rigidly connected to the frame. Holding onto the handlebars of the steering wheel, it controls the turns of the all-terrain vehicle by rotating the steering wheel in a vertical plane. By turning the steering wheel, the corresponding tension roller is removed from the tension position, the transmission belt loosens and ceases to transmit torque to the track. Turning the steering wheel further, the brake is applied, consisting of a brake pad, which is pressed against the brake disc mounted on the output shaft. In this case, the all-terrain vehicle unfolds in place around one point. To stop the all-terrain vehicle, both brakes located on both sides are activated by pressing the handle mounted on the steering wheel 2.

The speed of the all-terrain vehicle is controlled by changing the engine speed by the accelerator lever in the form of a trigger fixed near one of the handles of the steering wheel.

During the control of the all-terrain vehicle, the driver stands stably on the platform, unlike the prototype, where it is necessary to constantly change the position of the legs and at the same time try to maintain balance so as not to fall. Hands turn the steering wheel in a vertical plane, which also allows you to more stable hold the balance on the platform.

Made and tested prototypes of the claimed device. The manufacturability of the design was established in practice, since simple assemblies and parts are used in production, as well as affordable standard parts of mass production. During operation, the ease and safety of controlling an all-terrain vehicle was confirmed.

Thus, the achievement of the claimed technical result was confirmed.

Claims (2)

1. Small tracked all-terrain vehicle containing a power unit with an internal combustion engine, a transmission, a pair of tracked engines, a steering system and a platform for a standing driver, characterized in that the platform is rigidly connected to the frame of a small tracked all-terrain vehicle, the steering system contains cables connecting the steering wheel with pressure rollers and ensuring the removal of the corresponding roller from the position of pressing on the belt and, as a result, the cessation of the transmission of torque to the track moves l. 2. The all-terrain vehicle according to claim 1, characterized in that in the hinged connection of the steering wheel and the steering rack, the axis on which the steering wheel is mounted is fixed to the column at an angle to its longitudinal axis.

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